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| author | Charlie Dorian <cldorian@gmail.com> | 2015-06-30 20:14:30 -0400 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2015-07-10 22:22:24 +0000 |
| commit | 8b221092b9a9664918c28a76b109786956e0057d (patch) | |
| tree | 5d7e2ae49489ef8bf20d0e4b1f0f530c5ebe00e5 /src/math/expm1.go | |
| parent | 1082e2390e55519a576f21c0424f41246d232808 (diff) | |
| download | go-git-8b221092b9a9664918c28a76b109786956e0057d.tar.gz | |
math: Expm1 returns -1 with large negative argument.
Fixes #11442
Change-Id: I2053fe752c6a122924d28565f1338f73e00ed417
Reviewed-on: https://go-review.googlesource.com/11791
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/math/expm1.go')
| -rw-r--r-- | src/math/expm1.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/math/expm1.go b/src/math/expm1.go index 8f56e15cc4..064e131161 100644 --- a/src/math/expm1.go +++ b/src/math/expm1.go @@ -158,11 +158,11 @@ func expm1(x float64) float64 { // filter out huge argument if absx >= Ln2X56 { // if |x| >= 56 * ln2 - if absx >= Othreshold { // if |x| >= 709.78... - return Inf(1) // overflow - } if sign { - return -1 // x < -56*ln2, return -1.0 + return -1 // x < -56*ln2, return -1 + } + if absx >= Othreshold { // if |x| >= 709.78... + return Inf(1) } } |